Dexamethasone Sodium Phosphate Injection, USP)
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HEXADROL® PHOSPHATE INJECTION (dexamethasone sodium phosphate injection, USP) DESCRIPTION — Hexadrol® Phosphate Injection (dexamethasone sodium phosphate injection, USP) is a water-soluble inorganic ester of dexamethasone which produces a rapid response even when injected intramuscularly. Dexamethasone Sodium Phosphate, C22H28FNa2O8P, has a molecular weight of 516.41 and chemically is Pregn-4-ene-3, 20-dione, 9-fluoro-11, 17-dihydroxy-16-methyl-21 (phosphonooxy)-, disodium salt, (11β, 16α). It occurs as a white to creamy white powder, is exceedingly hygroscopic, is soluble in water and its solutions have a pH between 7.5 and 10.5. It has the following structural formula: Hexadrol® Phosphate Injection is available in 4 mg/mL and 10 mg/mL concentrations. Each mL of Hexadrol® Phosphate Injection 4 mg/mL, contains dexamethasone sodium phosphate, USP equivalent to 4 mg dexamethasone phosphate; 1 mg sodium sulfite; 10 mg benzyl alcohol (preservative). Made isotonic with sodium citrate. pH adjusted with citric acid or sodium hydroxide. 1 Reference ID: 3593917 Each mL of Hexadrol® Phosphate Injection 10 mg/mL, contains dexamethasone sodium phosphate, USP equivalent to 10 mg dexamethasone phosphate; 1.5 mg sodium sulfite; 10 mg benzyl alcohol (preservative). Made isotonic with sodium citrate. pH adjusted with citric acid or sodium hydroxide. ACTIONS — Naturally occurring glucocorticoids (hydrocortisone), which also have salt- retaining properties, are used as replacement therapy in adrenocortical deficiency states. Their synthetic analogs are primarily used for their potent anti-inflammatory effects in disorders of many organ systems. Glucocorticoids cause profound and varied metabolic effects. In addition, they modify the body’s immune responses to diverse stimuli. INDICATIONS — A. Intravenous or intramuscular administration. When oral therapy is not feasible and the strength, dosage form, and route of administration of the drug reasonably lend the preparation to the treatment of the condition, those products labeled for intravenous or intramuscular use are indicated as follows: 1. Endocrine disorders. Primary or secondary adrenocortical insufficiency (hydrocortisone or cortisone is the drug of choice; synthetic analogs may be used in conjunction with mineralocorticoids where applicable; in infancy, mineralocorticoid supplementation is of particular importance). Acute adrenocortical insufficiency (hydrocortisone or cortisone is the drug of choice; mineralocorticoid supplementation may be necessary, particularly when synthetic analogs are used). Preoperatively, and in the event of serious trauma or illness, in patients with known adrenal insufficiency or when adrenocortical reserve is doubtful. Shock unresponsive to conventional therapy if adrenocortical insufficiency exists or is suspected. 2 Reference ID: 3593917 Congenital adrenal hyperplasia. Nonsuppurative thyroiditis. Hypercalcemia associated with cancer. 2. Rheumatic disorders. As adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in: Post-traumatic osteoarthritis. Synovitis of osteoarthritis. Rheumatoid arthritis, including juvenile rheumatoid arthritis (selected cases may require low-dose maintenance therapy). Acute and subacute bursitis. Epicondylitis. Acute nonspecific tenosynovitis. Acute gouty arthritis. Psoriatic arthritis. Ankylosing spondylitis. 3. Collagen diseases. During an exacerbation or as maintenance therapy in selected cases of: Systemic lupus erythematosus. Acute rheumatic carditis. 4. Dermatologic diseases. Pemphigus. Severe erythema multiforme (Stevens-Johnson Syndrome). Exfoliative dermatitis. Bullous dermatitis herpetiformis. Severe seborrheic dermatitis. Severe psoriasis. Mycosis fungoides. 3 Reference ID: 3593917 5. Allergic states. Control of severe or incapacitating allergic conditions intractable to adequate trials of conventional treatment in: Bronchial asthma. Contact dermatitis. Atopic dermatitis. Serum sickness. Seasonal or perennial allergic rhinitis. Drug hypersensitivity reactions. Urticarial transfusion reactions. Acute noninfectious laryngeal edema (epinephrine is the drug of first choice). 6. Ophthalmic diseases. Severe acute and chronic allergic and inflammatory processes involving the eye, such as: Herpes zoster ophthalmicus. Iritis, iridocyclitis. Chorioretinitis. Diffuse posterior uveitis and choroiditis. Optic neuritis. Sympathetic ophthalmia. Anterior segment inflammation. Allergic conjunctivitis. Allergic corneal marginal ulcers. Keratitis. 7. Gastrointestinal diseases. To tide the patient over a critical period of the disease in: Ulcerative colitis (systemic therapy). Regional enteritis (systemic therapy). 4 Reference ID: 3593917 8. Respiratory diseases: Symptomatic Sarcoidosis. Berylliosis. Fulminating or disseminated pulmonary tuberculosis when used concurrently with appropriate anti-tuberculosis chemotherapy. Loeffler's syndrome not manageable by other means. Aspiration pneumonitis. 9. Hematologic disorders: Acquired (autoimmune) hemolytic anemia. Idiopathic thrombocytopenic purpura in adults (I.V. only; I.M. administration is contraindicated). Secondary thrombocytopenia in adults. Erythroblastopenia (RBC anemia). Congenital (erythroid) hypoplastic anemia. 10. Neoplastic diseases. For palliative management of: Leukemias and lymphomas in adults. Acute leukemia of childhood. 11. Edematous states. To induce diuresis or remission of proteinuria in the nephrotic syndrome, without uremia, of the idiopathic type or that due to lupus erythematosus. 12. Nervous system. Acute exacerbations of multiple sclerosis. 13. Miscellaneous. 5 Reference ID: 3593917 Tuberculous meningitis with subarachnoid block or impending block when used concurrently with appropriate anti-tuberculosis chemotherapy. Trichinosis with neurologic or myocardial involvement. Diagnostic testing of adrenocortical hyperfunction. Cerebral edema of diverse etiologies in conjunction with adequate neurological evaluation and management. B. Intra-articular or soft tissue administration. When the strength and dosage form of the drug lend the preparation to the treatment of the condition, those products labeled for intra-articular or soft tissue administration are indicated as adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in: Synovitis of osteoarthritis. Rheumatoid arthritis. Acute and subacute bursitis. Acute gouty arthritis. Epicondylitis. Acute nonspecific tenosynovitis. Post-traumatic osteoarthritis. C. Intralesional administration. When the strength and dosage form of the drug lend the preparation to the treatment of the condition, those products labeled for intralesional administration are indicated for: Keloids. Localized hypertrophic, infiltrated, inflammatory lesions of: lichen planus, psoriatic plaques, granuloma annulare, and lichen simplex chronicus (neurodermatitis). Discoid lupus erythematosus. Necrobiosis lipoidica diabeticorum. Alopecia areata. 6 Reference ID: 3593917 They also may be useful in cystic tumors of an aponeurosis tendon (ganglia). CONTRAINDICATIONS — Systemic fungal infections. WARNINGS — Serious Neurologic Adverse Reactions with Epidural Administration Serious neurologic events, some resulting in death, have been reported with epidural injection of corticosteroids. Specific events reported include, but are not limited to, spinal cord infarction, paraplegia, quadriplegia, cortical blindness, and stroke. These serious neurologic events have been reported with and without use of fluoroscopy. The safety and effectiveness of epidural administration of corticosteroids have not been established, and corticosteroids are not approved for this use. In patients on corticosteroid therapy subject to any unusual stress, increased dosage of rapidly acting corticosteroids before, during and after the stressful situation is indicated. Corticosteroids may mask some signs of infection, and new infections may appear during their use. There may be decreased resistance and inability to localize infection when corticosteroids are used. Prolonged use of corticosteroids may produce posterior subcapsular cataracts, glaucoma with possible damage to the optic nerves, and may enhance the establishment of secondary ocular infections due to fungi or viruses. Children who are on immunosuppressant drugs are more susceptible to infections than healthy children. Chickenpox and measles, for example, can have a more serious or even fatal course in children on immunosuppressant corticosteroids. In such children, or in adults who have not had these diseases, particular care should be taken to avoid exposure. If exposed, therapy with varicella zoster immune globulin (VZIG) or pooled intravenous immunoglobulin (IVIG), as appropriate, may 7 Reference ID: 3593917 be indicated. If chickenpox develops, treatment with antiviral agents may be considered. Similarly, corticosteroids should be used with great care in patients with known or suspected Strongyloides (threadworm) infestation. In such patients, corticosteroid induced immunosuppression may lead to Strongyloides hyperinfection and dissemination with widespread larval migration, often accompanied by severe enterocolitis and potentially fatal gram-negative septicemia. Usage in Pregnancy. Since adequate human reproduction studies have not been done with corticosteroids, use of these drugs in pregnancy, nursing mothers or women of childbearing potential requires that the possible benefits of the drug be weighed against